diff --git a/ember-test-selectors/package.json b/ember-test-selectors/package.json
index 9eb47ec3..7b0c0336 100644
--- a/ember-test-selectors/package.json
+++ b/ember-test-selectors/package.json
@@ -18,7 +18,7 @@
     "strip-test-selectors": "workspace:*"
   },
   "devDependencies": {
-    "eslint": "8.57.1",
+    "eslint": "9.39.1",
     "eslint-config-prettier": "10.1.8",
     "eslint-config-simplabs": "0.4.0",
     "eslint-plugin-ember": "12.7.4",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6c74495f..af315b39 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -28,23 +28,23 @@ importers:
         version: link:../strip-test-selectors
     devDependencies:
       eslint:
-        specifier: 8.57.1
-        version: 8.57.1
+        specifier: 9.39.1
+        version: 9.39.1
       eslint-config-prettier:
         specifier: 10.1.8
-        version: 10.1.8(eslint@8.57.1)
+        version: 10.1.8(eslint@9.39.1)
       eslint-config-simplabs:
         specifier: 0.4.0
-        version: 0.4.0(eslint@8.57.1)
+        version: 0.4.0(eslint@9.39.1)
       eslint-plugin-ember:
         specifier: 12.7.4
-        version: 12.7.4(@babel/core@7.28.4)(eslint@8.57.1)(typescript@5.9.3)
+        version: 12.7.4(@babel/core@7.28.4)(eslint@9.39.1)(typescript@5.9.3)
       eslint-plugin-prettier:
         specifier: 5.5.4
-        version: 5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2)
+        version: 5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@9.39.1))(eslint@9.39.1)(prettier@3.6.2)
       eslint-plugin-qunit:
         specifier: 8.2.5
-        version: 8.2.5(eslint@8.57.1)
+        version: 8.2.5(eslint@9.39.1)
       prettier:
         specifier: 3.6.2
         version: 3.6.2
@@ -52,17 +52,17 @@ importers:
   strip-test-selectors:
     devDependencies:
       eslint:
-        specifier: 8.57.1
-        version: 8.57.1
+        specifier: 9.39.1
+        version: 9.39.1
       eslint-config-prettier:
         specifier: 9.1.2
-        version: 9.1.2(eslint@8.57.1)
+        version: 9.1.2(eslint@9.39.1)
       eslint-config-simplabs:
         specifier: 0.4.0
-        version: 0.4.0(eslint@8.57.1)
+        version: 0.4.0(eslint@9.39.1)
       eslint-plugin-prettier:
         specifier: 5.5.4
-        version: 5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@9.1.2(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2)
+        version: 5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@9.1.2(eslint@9.39.1))(eslint@9.39.1)(prettier@3.6.2)
       prettier:
         specifier: 3.6.2
         version: 3.6.2
@@ -1269,10 +1269,18 @@ packages:
     resolution: {integrity: sha512-csZAzkNhsgwb0I/UAV6/RGFTbiakPCf0ZrGmrIxQpYvGZ00PhTkSnyKNolphgIvmnJeGw6rcGVEXfTzUnFuEvw==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@eslint/config-helpers@0.4.2':
+    resolution: {integrity: sha512-gBrxN88gOIf3R7ja5K9slwNayVcZgK6SOUORm2uBzTeIEfeVaIhOpCtTox3P6R7o2jLFwLFTLnC7kU/RGcYEgw==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+
   '@eslint/core@0.16.0':
     resolution: {integrity: sha512-nmC8/totwobIiFcGkDza3GIKfAw1+hLiYVrh3I1nIomQ8PEr5cxg34jnkmGawul/ep52wGRAcyeDCNtWKSOj4Q==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@eslint/core@0.17.0':
+    resolution: {integrity: sha512-yL/sLrpmtDaFEiUj1osRP4TI2MDz1AddJL+jZ7KSqvBuliN4xqYY54IfdN8qD8Toa6g1iloph1fxQNkjOxrrpQ==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+
   '@eslint/eslintrc@2.1.4':
     resolution: {integrity: sha512-269Z39MS6wVJtsoUl10L60WdkhJVdPG24Q4eZTH3nnF6lpvSShEK3wQjDX9JRWAUPvPh7COouPpU9IrqaZFvtQ==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -1289,6 +1297,10 @@ packages:
     resolution: {integrity: sha512-UZ1VpFvXf9J06YG9xQBdnzU+kthors6KjhMAl6f4gH4usHyh31rUf2DLGInT8RFYIReYXNSydgPY0V2LuWgl7A==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@eslint/js@9.39.1':
+    resolution: {integrity: sha512-S26Stp4zCy88tH94QbBv3XCuzRQiZ9yXofEILmglYTh/Ug/a9/umqvgFtYBAo3Lp0nsI/5/qH1CCrbdK3AP1Tw==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+
   '@eslint/object-schema@2.1.7':
     resolution: {integrity: sha512-VtAOaymWVfZcmZbp6E2mympDIHvyjXs/12LqWYjVw6qjrfF+VK+fyG33kChz3nnK+SU5/NeHOqrTEHS8sXO3OA==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
@@ -1297,6 +1309,10 @@ packages:
     resolution: {integrity: sha512-sB5uyeq+dwCWyPi31B2gQlVlo+j5brPlWx4yZBrEaRo/nhdDE8Xke1gsGgtiBdaBTxuTkceLVuVt/pclrasb0A==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@eslint/plugin-kit@0.4.1':
+    resolution: {integrity: sha512-43/qtrDUokr7LJqoF2c3+RInu/t4zfrpYdoSDfYyhg52rwLV6TnOvdG4fXm7IkSB3wErkcmJS9iEhjVtOSEjjA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+
   '@gar/promisify@1.1.3':
     resolution: {integrity: sha512-k2Ty1JcVojjJFwrg/ThKi2ujJ7XNLYaFGNB/bWT9wGR+oSMJHMa5w+CUq6p/pVrKeNNgA7pCqEcjSnHVoqJQFw==}
 
@@ -3768,6 +3784,16 @@ packages:
       jiti:
         optional: true
 
+  eslint@9.39.1:
+    resolution: {integrity: sha512-BhHmn2yNOFA9H9JmmIVKJmd288g9hrVRDkdoIgRCRuSySRUHH7r/DI6aAXW9T1WwUuY3DFgrcaqB+deURBLR5g==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    hasBin: true
+    peerDependencies:
+      jiti: '*'
+    peerDependenciesMeta:
+      jiti:
+        optional: true
+
   esm@3.2.25:
     resolution: {integrity: sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==}
     engines: {node: '>=6'}
@@ -7540,19 +7566,19 @@ snapshots:
       eslint-visitor-keys: 2.1.0
       semver: 6.3.1
 
-  '@babel/eslint-parser@7.28.4(@babel/core@7.28.4)(eslint@8.57.1)':
+  '@babel/eslint-parser@7.28.4(@babel/core@7.28.4)(eslint@9.38.0)':
     dependencies:
       '@babel/core': 7.28.4
       '@nicolo-ribaudo/eslint-scope-5-internals': 5.1.1-v1
-      eslint: 8.57.1
+      eslint: 9.38.0
       eslint-visitor-keys: 2.1.0
       semver: 6.3.1
 
-  '@babel/eslint-parser@7.28.4(@babel/core@7.28.4)(eslint@9.38.0)':
+  '@babel/eslint-parser@7.28.4(@babel/core@7.28.4)(eslint@9.39.1)':
     dependencies:
       '@babel/core': 7.28.4
       '@nicolo-ribaudo/eslint-scope-5-internals': 5.1.1-v1
-      eslint: 9.38.0
+      eslint: 9.39.1
       eslint-visitor-keys: 2.1.0
       semver: 6.3.1
 
@@ -8727,6 +8753,11 @@ snapshots:
       eslint: 9.38.0
       eslint-visitor-keys: 3.4.3
 
+  '@eslint-community/eslint-utils@4.9.0(eslint@9.39.1)':
+    dependencies:
+      eslint: 9.39.1
+      eslint-visitor-keys: 3.4.3
+
   '@eslint-community/regexpp@4.12.1': {}
 
   '@eslint/config-array@0.21.1':
@@ -8741,10 +8772,18 @@ snapshots:
     dependencies:
       '@eslint/core': 0.16.0
 
+  '@eslint/config-helpers@0.4.2':
+    dependencies:
+      '@eslint/core': 0.17.0
+
   '@eslint/core@0.16.0':
     dependencies:
       '@types/json-schema': 7.0.15
 
+  '@eslint/core@0.17.0':
+    dependencies:
+      '@types/json-schema': 7.0.15
+
   '@eslint/eslintrc@2.1.4':
     dependencies:
       ajv: 6.12.6
@@ -8777,6 +8816,8 @@ snapshots:
 
   '@eslint/js@9.38.0': {}
 
+  '@eslint/js@9.39.1': {}
+
   '@eslint/object-schema@2.1.7': {}
 
   '@eslint/plugin-kit@0.4.0':
@@ -8784,6 +8825,11 @@ snapshots:
       '@eslint/core': 0.16.0
       levn: 0.4.1
 
+  '@eslint/plugin-kit@0.4.1':
+    dependencies:
+      '@eslint/core': 0.17.0
+      levn: 0.4.1
+
   '@gar/promisify@1.1.3': {}
 
   '@glimmer/compiler@0.92.4':
@@ -9442,7 +9488,7 @@ snapshots:
 
   '@types/minimatch@6.0.0':
     dependencies:
-      minimatch: 7.4.6
+      minimatch: 10.0.3
 
   '@types/node@24.8.1':
     dependencies:
@@ -11587,10 +11633,10 @@ snapshots:
       - eslint
       - typescript
 
-  ember-eslint-parser@0.5.11(@babel/core@7.28.4)(eslint@8.57.1)(typescript@5.9.3):
+  ember-eslint-parser@0.5.11(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3):
     dependencies:
       '@babel/core': 7.28.4
-      '@babel/eslint-parser': 7.28.4(@babel/core@7.28.4)(eslint@8.57.1)
+      '@babel/eslint-parser': 7.28.4(@babel/core@7.28.4)(eslint@9.38.0)
       '@glimmer/syntax': 0.95.0
       '@typescript-eslint/tsconfig-utils': 8.46.1(typescript@5.9.3)
       content-tag: 2.0.3
@@ -11602,10 +11648,10 @@ snapshots:
       - eslint
       - typescript
 
-  ember-eslint-parser@0.5.11(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3):
+  ember-eslint-parser@0.5.11(@babel/core@7.28.4)(eslint@9.39.1)(typescript@5.9.3):
     dependencies:
       '@babel/core': 7.28.4
-      '@babel/eslint-parser': 7.28.4(@babel/core@7.28.4)(eslint@9.38.0)
+      '@babel/eslint-parser': 7.28.4(@babel/core@7.28.4)(eslint@9.39.1)
       '@glimmer/syntax': 0.95.0
       '@typescript-eslint/tsconfig-utils': 8.46.1(typescript@5.9.3)
       content-tag: 2.0.3
@@ -12083,22 +12129,22 @@ snapshots:
       eslint: 9.38.0
       semver: 7.7.3
 
-  eslint-config-prettier@10.1.8(eslint@8.57.1):
+  eslint-config-prettier@10.1.8(eslint@9.39.1):
     dependencies:
-      eslint: 8.57.1
+      eslint: 9.39.1
 
   eslint-config-prettier@9.1.0(eslint@8.57.1):
     dependencies:
       eslint: 8.57.1
 
-  eslint-config-prettier@9.1.2(eslint@8.57.1):
-    dependencies:
-      eslint: 8.57.1
-
   eslint-config-prettier@9.1.2(eslint@9.38.0):
     dependencies:
       eslint: 9.38.0
 
+  eslint-config-prettier@9.1.2(eslint@9.39.1):
+    dependencies:
+      eslint: 9.39.1
+
   eslint-config-simplabs@0.4.0(eslint@8.57.1):
     dependencies:
       ember-cli-version-checker: 1.3.1
@@ -12108,6 +12154,15 @@ snapshots:
       pify: 2.3.0
       supports-color: 3.2.3
 
+  eslint-config-simplabs@0.4.0(eslint@9.39.1):
+    dependencies:
+      ember-cli-version-checker: 1.3.1
+      eslint: 9.39.1
+      execa: 0.6.3
+      fs-extra: 2.1.2
+      pify: 2.3.0
+      supports-color: 3.2.3
+
   eslint-formatter-kakoune@1.0.0: {}
 
   eslint-plugin-ember@12.3.3(@babel/core@7.26.0)(eslint@8.57.1)(typescript@5.9.3):
@@ -12127,14 +12182,14 @@ snapshots:
       - '@babel/core'
       - typescript
 
-  eslint-plugin-ember@12.7.4(@babel/core@7.28.4)(eslint@8.57.1)(typescript@5.9.3):
+  eslint-plugin-ember@12.7.4(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3):
     dependencies:
       '@ember-data/rfc395-data': 0.0.4
       css-tree: 3.1.0
-      ember-eslint-parser: 0.5.11(@babel/core@7.28.4)(eslint@8.57.1)(typescript@5.9.3)
+      ember-eslint-parser: 0.5.11(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3)
       ember-rfc176-data: 0.3.18
-      eslint: 8.57.1
-      eslint-utils: 3.0.0(eslint@8.57.1)
+      eslint: 9.38.0
+      eslint-utils: 3.0.0(eslint@9.38.0)
       estraverse: 5.3.0
       lodash.camelcase: 4.3.0
       lodash.kebabcase: 4.1.1
@@ -12144,14 +12199,14 @@ snapshots:
       - '@babel/core'
       - typescript
 
-  eslint-plugin-ember@12.7.4(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3):
+  eslint-plugin-ember@12.7.4(@babel/core@7.28.4)(eslint@9.39.1)(typescript@5.9.3):
     dependencies:
       '@ember-data/rfc395-data': 0.0.4
       css-tree: 3.1.0
-      ember-eslint-parser: 0.5.11(@babel/core@7.28.4)(eslint@9.38.0)(typescript@5.9.3)
+      ember-eslint-parser: 0.5.11(@babel/core@7.28.4)(eslint@9.39.1)(typescript@5.9.3)
       ember-rfc176-data: 0.3.18
-      eslint: 9.38.0
-      eslint-utils: 3.0.0(eslint@9.38.0)
+      eslint: 9.39.1
+      eslint-utils: 3.0.0(eslint@9.39.1)
       estraverse: 5.3.0
       lodash.camelcase: 4.3.0
       lodash.kebabcase: 4.1.1
@@ -12191,25 +12246,25 @@ snapshots:
     optionalDependencies:
       eslint-config-prettier: 9.1.0(eslint@8.57.1)
 
-  eslint-plugin-prettier@5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2):
+  eslint-plugin-prettier@5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@9.39.1))(eslint@9.39.1)(prettier@3.6.2):
     dependencies:
-      eslint: 8.57.1
+      eslint: 9.39.1
       prettier: 3.6.2
       prettier-linter-helpers: 1.0.0
       synckit: 0.11.11
     optionalDependencies:
       '@types/eslint': 9.6.1
-      eslint-config-prettier: 10.1.8(eslint@8.57.1)
+      eslint-config-prettier: 10.1.8(eslint@9.39.1)
 
-  eslint-plugin-prettier@5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@9.1.2(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2):
+  eslint-plugin-prettier@5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@9.1.2(eslint@9.39.1))(eslint@9.39.1)(prettier@3.6.2):
     dependencies:
-      eslint: 8.57.1
+      eslint: 9.39.1
       prettier: 3.6.2
       prettier-linter-helpers: 1.0.0
       synckit: 0.11.11
     optionalDependencies:
       '@types/eslint': 9.6.1
-      eslint-config-prettier: 9.1.2(eslint@8.57.1)
+      eslint-config-prettier: 9.1.2(eslint@9.39.1)
 
   eslint-plugin-qunit@8.1.2(eslint@8.57.1):
     dependencies:
@@ -12218,16 +12273,16 @@ snapshots:
     transitivePeerDependencies:
       - eslint
 
-  eslint-plugin-qunit@8.2.5(eslint@8.57.1):
+  eslint-plugin-qunit@8.2.5(eslint@9.38.0):
     dependencies:
-      eslint-utils: 3.0.0(eslint@8.57.1)
+      eslint-utils: 3.0.0(eslint@9.38.0)
       requireindex: 1.2.0
     transitivePeerDependencies:
       - eslint
 
-  eslint-plugin-qunit@8.2.5(eslint@9.38.0):
+  eslint-plugin-qunit@8.2.5(eslint@9.39.1):
     dependencies:
-      eslint-utils: 3.0.0(eslint@9.38.0)
+      eslint-utils: 3.0.0(eslint@9.39.1)
       requireindex: 1.2.0
     transitivePeerDependencies:
       - eslint
@@ -12257,6 +12312,11 @@ snapshots:
       eslint: 9.38.0
       eslint-visitor-keys: 2.1.0
 
+  eslint-utils@3.0.0(eslint@9.39.1):
+    dependencies:
+      eslint: 9.39.1
+      eslint-visitor-keys: 2.1.0
+
   eslint-visitor-keys@2.1.0: {}
 
   eslint-visitor-keys@3.4.3: {}
@@ -12345,6 +12405,45 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  eslint@9.39.1:
+    dependencies:
+      '@eslint-community/eslint-utils': 4.9.0(eslint@9.39.1)
+      '@eslint-community/regexpp': 4.12.1
+      '@eslint/config-array': 0.21.1
+      '@eslint/config-helpers': 0.4.2
+      '@eslint/core': 0.17.0
+      '@eslint/eslintrc': 3.3.1
+      '@eslint/js': 9.39.1
+      '@eslint/plugin-kit': 0.4.1
+      '@humanfs/node': 0.16.7
+      '@humanwhocodes/module-importer': 1.0.1
+      '@humanwhocodes/retry': 0.4.3
+      '@types/estree': 1.0.8
+      ajv: 6.12.6
+      chalk: 4.1.2
+      cross-spawn: 7.0.6
+      debug: 4.4.3(supports-color@8.1.1)
+      escape-string-regexp: 4.0.0
+      eslint-scope: 8.4.0
+      eslint-visitor-keys: 4.2.1
+      espree: 10.4.0
+      esquery: 1.6.0
+      esutils: 2.0.3
+      fast-deep-equal: 3.1.3
+      file-entry-cache: 8.0.0
+      find-up: 5.0.0
+      glob-parent: 6.0.2
+      ignore: 5.3.2
+      imurmurhash: 0.1.4
+      is-glob: 4.0.3
+      json-stable-stringify-without-jsonify: 1.0.1
+      lodash.merge: 4.6.2
+      minimatch: 3.1.2
+      natural-compare: 1.4.0
+      optionator: 0.9.4
+    transitivePeerDependencies:
+      - supports-color
+
   esm@3.2.25: {}
 
   espree@10.4.0:
diff --git a/strip-test-selectors/package.json b/strip-test-selectors/package.json
index dabae3cf..ac96ea14 100644
--- a/strip-test-selectors/package.json
+++ b/strip-test-selectors/package.json
@@ -13,7 +13,7 @@
     "lint": "eslint . --cache"
   },
   "devDependencies": {
-    "eslint": "8.57.1",
+    "eslint": "9.39.1",
     "eslint-config-prettier": "9.1.2",
     "eslint-config-simplabs": "0.4.0",
     "eslint-plugin-prettier": "5.5.4",